Safety helmet



FIG. 1 is a perspective view of a safety helmet showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The fastening belt is removed from FIGS. 2-7 for clarify ofillustration.

The ornamental design for a safety helmet, as shown and described.